In the chaos of iPhone 7 preorder night last week, one widespread complaint was Apple's apparent neglect of customers signed up with the company's iPhone Upgrade Program. As Zac noted last week, one of the biggest problems with the plan is that customers must buy from Apple in-store, not from a third-party store like Best Buy or even online from Apple.Now, Apple has been hit with a class action lawsuit because the issues surrounding the iPhone Upgrade Program. Filed in the U.S. District Court in Northern California, the lawsuit accuses Apple of prioritizing new customers over those who are part of the iPhone Upgrade Program.